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4 stroke oil
LSF Member
Joined:
12/24/2014
Posts: 61
I just bought a new to me 2013 lund 1825 pro guide. It has a 90hp mercury 4 stroke. Wondering what you guys run for oil in these motors? Thanks for the help.

Posted on: 9/4 11:43:19
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Re: 4 stroke oil
LSF Member
Joined:
12/04/2012
From Zipple Bay & Plymouth
Posts: 406
Marine Synthetic for sure. Amzoil is good, be sure to get Marine Grade in any oil.

Posted on: 9/4 13:43:53
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Re: 4 stroke oil
LSF Member
Joined:
02/10/2012
From Granite Falls/Breckenridge
Posts: 65
Run Oem oil, regular auto oil does not have the anti foaming additives that marine oil has. Your outboard spins a lot lot more Rpms than what your truck or car does on a consistent basis

Posted on: 9/5 18:53:55
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Re: 4 stroke oil
LSF Member
Joined:
11/28/2005
From Savage, MN
Posts: 260
I run AMSoil in every motor I own. Never had a problem.

Posted on: 9/6 7:56:19
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Re: 4 stroke oil
Staff Team
Joined:
02/19/2008
From Bloomington
Posts: 3443
Like it has been said, what the OEM calls for or better.

Also only run NON OXY gas. and still add marine stabil in every tank.

Posted on: 9/6 11:04:20
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Yes, Yes that is a 39" Pike.
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Re: 4 stroke oil
LSF Member
Joined:
12/24/2014
Posts: 61
I have always ran non-oxy in my boats and planed to in this one to. But i have been told to run regular 87 with stabilizer. Hard to find 91 non-oxy without ethanol more less 87 without it. Ethanol just scares me, I've heard to many horror stories. About the oil, mercury quicksilver has 2 weights. 10w-30 and 25w-40 I think. Which one is the way to go? Thanks for the help.

Posted on: 9/7 19:58:54
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Re: 4 stroke oil
Staff Team
Joined:
02/19/2008
From Bloomington
Posts: 3443
Quote:

Redeyesdixie wrote:
About the oil, mercury quicksilver has 2 weights. 10w-30 and 25w-40 I think. Which one is the way to go? Thanks for the help.


Those are such vastly different oils I would consult the manual.

Posted on: 9/8 15:52:21
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Yes, Yes that is a 39" Pike.
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